The selected location is:

The elevation is 494 m ( 1621 ft )
The gradient is: 0.0 percent
There is no aspect direction.
The local roughness is: 0.0 or flat
The location as decimal degrees (X,Y;Z) = -100.5076, 44.5686; 494 m

The state and county are South Dakota: Sully County 46119
The HUC is Lower Lake Oahe 10130105; Place point in HUC
The Omernik ecoregion is Northwestern Great Plains (less typical) 43
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Nearby named places (in order by distance)

1. Okobojo Recreation Area; South Dakota: Sully Co. -100.5076, 44.5686 at a distance of 3 m
2. Okobojo Creek mouth; South Dakota: Sully Co. -100.5176, 44.5692 at a distance of 798 m
3. Cow Creek Recreation Area; South Dakota: Sully Co. -100.4971, 44.5617 at a distance of 1133 m
4. Lewellyn Park, Township of; South Dakota: Sully Co. -100.5179, 44.5833 at a distance of 1826 m
5. Fielder Post Office (historical); South Dakota: Hughes Co. -100.5057, 44.5469 at a distance of 2418 m
6. Oko Bojou Islands (historical); South Dakota: Hughes Co. -100.5129, 44.5417 at a distance of 3021 m
7. Plum Creek mouth; South Dakota: Sully Co. -100.5296, 44.5908 at a distance of 3022 m
8. Spring Creek Recreation Area; South Dakota: Hughes Co. -100.4771, 44.5458 at a distance of 3506 m
9. Lower Sully Landing (historical); South Dakota: Sully Co. -100.5515, 44.5569 at a distance of 3724 m
10. Dry Creek mouth; South Dakota: Sully Co. -100.5537, 44.5839 at a distance of 4038 m

The 7.5 minute series topographic maps for that area